$TTL 86400
@ IN SOA ns.domain.eu. {dnsemail} (
{serial} ; Serial, this is [url]www.ehcp.net[/url] dns zone template file..
10800 ; Refresh
1200 ; Retry
86400 ; Expire
86400 ) ; Minimum
domain.eu. IN NS ns.domain.eu.
ns.domain.eu. IN A {dnsip}
ns1.domain.eu. IN A {dnsip}
ns2.domain.eu. IN A {dnsip}
dns.domain.eu. IN A {dnsip}
dns1.domain.eu. IN A {dnsip}
dns2.domain.eu. IN A {dnsip}
domain.eu. IN A {webip}
mail.domain.eu. IN A {mailip}
smtp.domain.eu. IN A {webip}
imap.domain.eu. IN A {webip}
webmail.domain.eu. IN A {webip}
ftp.domain.eu. IN CNAME domain.eu.
[url]www.domain.eu[/url]. IN CNAME domain.eu.
domain.eu. IN MX 10 mail.domain.eu.
domain.eu. IN TXT "v=spf1 a mx"
{customdns}
* IN A {webip}

Need to mention also , i changed default port 25 for SMTP to 587 by adding submission inet n - - - - smtpd in /etc/postfix/master.cf , port 25 was bloked by ISP.
I appreciate any help in solving this .